from flask import Blueprint,request,make_response
import os
from utils.myfile import myf
from xlrd import open_workbook
from db import db1

from io import BytesIO
from xlrd import open_workbook
from urllib.parse import quote
import xlsxwriter
import datetime
import mimetypes

bp_execl=Blueprint("bp_execl",__name__)

@bp_execl.route('/upload',methods=['POST'])
def upload():
    # 获取文件
    file=request.files['file']
    newname=myf.rename(file.filename)
    # 上传文件
    file.save(os.path.join('./static/files/'+newname))
    # 打开文件读取
    name = 'static/files/'+newname
    # newname='643ff81c57384de89e485d18fd20b9b3.xls'
    # name='static/files/'+newname
    bk = open_workbook(name, encoding_override='utf-8')
    sh = bk.sheets()[0]
    nrows = sh.nrows
    ncols = sh.ncols
    for i in range(2, nrows):
        row_date = sh.row_values(i)
        for j in range(0,ncols):
            print(row_date[j])


    return 'ok'


@bp_execl.route('/download', methods=["GET", "POST"])
def download():
    # 实例化二进制数据
    out = BytesIO()
    # 创建一个Excel实例
    workbook = xlsxwriter.Workbook(out)
    # 添加一个sheet，add_worksheet()，默认"Sheet1"，可自定义命名，add_worksheet("资产列表")
    table = workbook.add_worksheet()
    # table.write(行, 列, 字段名)
    # 行、列从 0 开始计数
    # 字段命名根据每个人使用情况而定，插入数据部分也是
    sql="select * from test limit 0,10"
    res=db1.find_all(sql)
    table.write(0, 0, "资产编号")
    table.write(0, 1, "资产名称")
    for (i,index) in res:
        table.write(0, 0, "资产编号")
        table.write(0, 1, "资产名称")

    workbook.close()
    filename = quote("资产列表_{}.xlsx".format(datetime.datetime.now().strftime("%Y%m%d%H%M%S")))
    file = make_response(out.getvalue())
    out.close()
    mime_type = mimetypes.guess_type('%s.xlsx' % filename)[0]
    file.headers['Content-Type'] = mime_type
    file.headers["Cache-Control"] = "no-cache"
    file.headers['Content-Disposition'] = "attachment; filename*=utf-8''{}".format(filename)
    return file























